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Steve Wonnell

Noted:

At the summer AAPT meeting, David Lawrie of the University of Alberta gave
a poster session (session AI04) where he used red, green, and blue LEDs to
do color mixing. He brought the equipment with him and set it up next to
his poster. A novel aspect to this was that the LEDs were superbright, so
that the demos could be done in bright room light, with a LED to
projection screeen separation of a half-meter or so. I thought

Any schematics? Any handouts from the meeting available.
Sounds like it could make a great hallway demo

At the summer AAPT meeting, David
Lawrie of the University of Alberta gave
a poster session (session AI04) where
he used red, green, and blue LEDs to
do color mixing. He brought
the equipment with him and set it up next to
his poster. A novel aspect to this
was that the LEDs were superbright, so
that the demos could be done in bright
room light, with a LED to
projection screeen separation of
a half-meter or so. I thought

Any schematics? Any handouts from the
meeting available.
Sounds like it could make a great hallway
demo